5-ji kara 9-ji made (From Five to Nine) by Miki Aihira 3 volumes-ongoing
Sakuraba Junko works from 5 to 9 as a teacher and has no boyfriend. But days before her 27th birthday she's pursued by a monk, officemates and a student. Little girls please don't read this. (due to mature theme) First chapter is now scanlated!